6.5.1

Table Of Contents
Change the Size of the MTU on a vSphere Standard Switch
Change the size of the maximum transmission unit (MTU) on a vSphere Standard Switch to improve the
networking efficiency by increasing the amount of payload data transmitted with a single packet, that is,
enabling jumbo frames.
Procedure
1 In the vSphere Web Client, navigate to the host.
2 On the Configure tab, expand Networking and select Virtual switches.
3 Select a standard switch from the table and click Edit settings.
4 Change the MTU (Bytes) value for the standard switch.
You can enable jumbo frames by setting an MTU value greater than 1500. You cannot set an MTU
size greater than 9000 bytes.
5 Click OK.
Change the Speed of a Physical Adapter
A physical adapter can become a bottleneck for network traffic if the adapter speed does not match
application requirements. You can change the connection speed and duplex of a physical adapter to
transfer data in compliance with the traffic rate.
If the physical adapter supports SR-IOV, you can enable it and configure the number of virtual functions to
use for virtual machine networking.
Procedure
1 In the vSphere Web Client, navigate to a host.
2 On the Configure tab, expand Networking and select Physical adapters.
The physical network adapters of the host appear in a table that contains details for each physical
network adapter.
3 Select the physical network adapter from the list and click the Edit adapter settings icon.
4 Select speed and duplex mode of the physical network adapter from the drop-down menu.
5 Click OK.
Add and Team Physical Adapters in a vSphere Standard Switch
Assign a physical adapter to a standard switch to provide connectivity to virtual machines and VMkernel
adapters on the host. You can form a team of NICs to distribute traffic load and to configure failover.
NIC teaming combines multiple network connections to increase throughput and provide redundancy
should a link fail. To create a team, you associate multiple physical adapters to a single vSphere Standard
Switch.
vSphere Networking
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